CN111545879A - Hybrid thread for welding gun neck - Google Patents

Hybrid thread for welding gun neck Download PDF

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Publication number
CN111545879A
CN111545879A CN202010112371.4A CN202010112371A CN111545879A CN 111545879 A CN111545879 A CN 111545879A CN 202010112371 A CN202010112371 A CN 202010112371A CN 111545879 A CN111545879 A CN 111545879A
Authority
CN
China
Prior art keywords
welding gun
neck
tubular body
gas diffuser
threaded
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202010112371.4A
Other languages
Chinese (zh)
Inventor
罗伯特·J.·森特奈尔
杜安·S·斯纳普
罗伯特·L.·沃宁
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Illinois Tool Works Inc
Original Assignee
Illinois Tool Works Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Illinois Tool Works Inc filed Critical Illinois Tool Works Inc
Publication of CN111545879A publication Critical patent/CN111545879A/en
Pending legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K9/00—Arc welding or cutting
    • B23K9/24—Features related to electrodes
    • B23K9/28—Supporting devices for electrodes
    • B23K9/29—Supporting devices adapted for making use of shielding means
    • B23K9/291—Supporting devices adapted for making use of shielding means the shielding means being a gas
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K9/00—Arc welding or cutting
    • B23K9/24—Features related to electrodes
    • B23K9/28—Supporting devices for electrodes
    • B23K9/29—Supporting devices adapted for making use of shielding means

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Plasma & Fusion (AREA)
  • Mechanical Engineering (AREA)
  • Arc Welding In General (AREA)
  • Branch Pipes, Bends, And The Like (AREA)

Abstract

A torch neck for a welding torch includes an elongated tubular body having an end connectable to a gas diffuser. The elongated tubular body includes a threaded outer surface adjacent the end portion. The threaded outer surface defines a male threaded portion. The male threaded portion mates with the female thread of the gas diffuser. The threaded outer surface includes a straight portion and a tapered portion adjacent the straight portion. The torch neck may be connected to both a gas diffuser having a straight female thread and a gas diffuser having a tapered female thread.

Description

Hybrid thread for welding gun neck
The application is a divisional application of an invention patent application with the application date of 2014, 17.2.2014, the international application number of PCT/US2014/016684, the national application number of 201480022567.7 and the invention name of 'mixed threads for welding gun neck'.
Technical Field
The present disclosure relates to welding guns, and more particularly to a neck for a welding gun.
Background
Arc welding guns are generally composed of two main parts: (I) a flexible cable section that delivers electricity, shielding gas, welding wire, and sometimes cooling water to the contact tip and the neck of the nozzle (II) that is not flexible, and a non-flexible neck that delivers electricity, shielding gas, welding wire, and sometimes cooling water to the contact tip and the nozzle. The contact tip and nozzle are secured at the forward end of the neck which is not pliable.
Typically, the torch neck has a threaded end for receiving welding consumables such as a welding gas diffuser. The gas diffuser is screwed onto the threads at this end of the torch neck and allows passage of the shielding gas fed through the neck. The gas diffuser is also prepared for fitting the contact tip at the forward end of the welding gun.
Gas diffusers are available from various manufacturers throughout the world. It is common for each manufacturer to own a uniquely designed gas diffuser, and it is also common for each manufacturer to manufacture a torch neck that only fits its own gas diffuser. No industry standard exists for the connection between the torch neck and the gas diffuser.
Disclosure of Invention
The present invention relates to a weld gun neck that provides cross-brand compatibility with a variety of weld gun consumables from different manufacturers. The welding gun includes custom threaded connectors that allow more than one type of gas diffuser to be threaded onto the neck, thereby increasing the versatility of welding guns that use the neck.
More specifically, a torch neck for a welding torch includes an elongated tubular body having an end connectable to a gas diffuser. The elongated tubular body includes a threaded outer surface adjacent the end portion. The threaded outer surface defines a male threaded portion. The male threaded portion mates with the female threads of the gas diffuser. The threaded outer surface includes a straight portion and a tapered portion adjacent the straight portion. The torch neck may be connected to either a gas diffuser having a straight female thread or a gas diffuser having a tapered female thread.
In a particular embodiment, the tapered portion is disposed closer to the end of the elongate tubular body than the straight portion. The tapered portion of the threaded outer surface has NPI threads and the flat portion of the threaded outer surface has threads. The threads of the tapered portion meet the threads of the straight portion. That is, the threaded outer surface is formed by NPT threads and helical threads (threads) disposed adjacent to the end of the tubular body for connecting the gas diffuser.
Optionally, the elongate tubular body may include a tapered nose portion having a smooth outer surface. A tapered nose portion may be disposed between the end of the tubular body and the tapered portion of the threaded outer surface.
These and other features and advantages of the apparatus will be more fully understood from the following detailed description of the invention and the accompanying drawings.
Drawings
In the figure:
FIG. 1 is a side view of a weld gun including a weld gun neck;
FIG. 2 is a side view of a weld gun including a threaded connector;
FIG. 3 is an exploded view of the torch neck and gas diffuser;
FIG. 4 is an exploded view of the torch neck and another gas diffuser.
Detailed Description
Referring to fig. 1, reference numeral 10 generally indicates a welding gun for electric arc welding, such as a MIG welding gun or the like. In MIG welding, wire is used as the electrode to generate the arc. The weld area is protected by an inert gas and the wire is used as a filler (filler) to add mass to the weld. The inert gas serves to shield the molten metal from external contaminants and gases that may react with the weld melt material.
The welding gun 10 includes a handle 12, a gooseneck 14 extending from a forward end of the handle, and a contact tip assembly 16 connected to a forward end of the gooseneck opposite the handle. An electrical cable 18 is connected to the rear end of the handle 12 to provide one or more of gas, current, and consumable electrode (e.g., metal welding wire) to the welding gun 10. The other end of the cable 18 is connected to a wire feeder (not shown). A gooseneck 14 connected to the forward end of the handle 12 allows the consumable electrode, shielding gas and welding current to be delivered to a contact tip assembly 16 mounted on the gooseneck. The contact tip assembly 16 includes a gas diffuser that allows passage of shielding gas delivered from the gooseneck, a contact tip mounted in the gas diffuser for delivering electrical energy to the welding wire while directing the welding wire to the welding area, and a nozzle that covers the gas diffuser and contact tip and directs the shielding gas uniformly to the welding area. The welding gun 10 is a hand-held gun that includes a control switch, such as trigger 20, for use by an operator, or alternatively, the welding gun may be mounted on a robotic arm for automated operation. When the operator presses the trigger 20, the wire feed, power supply, and shielding gas flow are initiated, causing an arc to form.
Turning to fig. 2 and 3, the neck 14 of the torch 10 includes an elongated, non-pliable tubular body 22, the tubular body 22 having an end 24 connectable to a gas diffuser 26. Typically, the tubular body 22 has an angled bend, but alternatively, the tubular body 22 may be straight. The tubular body 22 includes a threaded outer surface 28 adjacent the end 24. Although the threaded surface 28 and the end 24 are shown as being slightly spaced apart due to the presence of a nose (see below), alternatively, the threaded outer surface may be provided directly at the end of the tubular body. The threaded outer surface 28 defines a male threaded portion. The male threaded portion mates with the internal female thread 30 of the gas diffuser 26 for attaching the gas diffuser to the torch neck.
The threaded outer surface 28 includes a straight portion 32 and a tapered portion 34 adjacent the straight portion 32. The tapered portion 34 is disposed closer to the end 24 of the tubular body 22 than the straight portion 32, and the threads of the tapered portion meet the threads of the straight portion. In one embodiment, the flat portion 32 has threads 9/16"-18 and the tapered portion 34 has threads l/4" -18NPT (National Pipe Thread). However, other specifications for the tapered portion and the straight portion are possible as long as the tapered portion merges with the straight portion (blend into).
The tubular body 22 also includes a tapered nose portion 36 having a smooth outer surface. A tapered nose piece 36 is disposed forwardly of the tubular body 22 between the tubular body end 24 and the tapered portion 34 of the threaded outer surface 28.
The threaded outer surface 28 includes adjacent tapered and straight portions 34 and 32 to allow the torch neck 14 to be attached to a straight female threaded gas diffuser or a tapered female threaded gas diffuser, so that the neck 14 (and the torch 10 including the neck) may be compatible with more than one brand or type of consumable (consumable) gas diffuser, as shown in the example of fig. 3, the neck 14 being compatible with the gas diffuser 26 having the tapered female thread 30, and as shown in fig. 4, the neck 14 being compatible with a different gas diffuser 38 having the straight female thread 40.
Although the apparatus has been described with reference to specific embodiments, it should be understood that numerous changes could be made within the spirit and scope of the inventive concepts described. Accordingly, it is intended that the apparatus not be limited to the described embodiments, but that it have the full scope defined by the language of the following claims.

Claims (8)

1. A welding gun neck for a welding gun, the welding gun neck comprising:
an elongated tubular body having a forward end and being directly connectable with a gas diffuser;
the elongated tubular body including a threaded outer surface adjacent the leading end, the threaded outer surface defining a male threaded portion;
the threaded outer surface of the elongate tubular body comprises a straight portion and a tapered portion contiguous with the straight portion;
the elongated tubular body further comprising a tapered nose portion having a smooth outer surface, the tapered nose portion disposed between the leading end of the elongated tubular body and the tapered portion of the threaded outer surface;
the male threaded portion mates with the female thread of the gas diffuser;
wherein the welding gun neck can be connected with a gas diffuser with a straight female thread or a gas diffuser with a conical female thread.
2. The welding gun neck of claim 1, wherein the tapered portion is disposed closer to the forward end of the elongated tubular body than the straight portion.
3. The welding gun neck of claim 1, wherein the tapered portion of the threaded outer surface has NPT threads.
4. The welding gun neck of claim 1, wherein the tapered portion of the threaded outer surface has 1/4"-18NPT threads.
5. The welding gun neck of claim 1, wherein the straight portion of the threaded outer surface is threaded.
6. The welding gun neck of claim 1, wherein said flat portion of said threaded outer surface has 9/16"-18 threads.
7. The welding gun neck of claim 1, wherein the threads of the tapered portion meet the threads of the straight portion.
8. A welding gun comprising the welding gun neck of claim 1.
CN202010112371.4A 2013-04-23 2014-02-17 Hybrid thread for welding gun neck Pending CN111545879A (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US13/868,146 US20140312023A1 (en) 2013-04-23 2013-04-23 Hybrid thread for welding gun neck
US13/868,146 2013-04-23
CN201480022567.7A CN105142843A (en) 2013-04-23 2014-02-17 Hybrid thread for welding gun neck

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
CN201480022567.7A Division CN105142843A (en) 2013-04-23 2014-02-17 Hybrid thread for welding gun neck

Publications (1)

Publication Number Publication Date
CN111545879A true CN111545879A (en) 2020-08-18

Family

ID=50238462

Family Applications (2)

Application Number Title Priority Date Filing Date
CN201480022567.7A Pending CN105142843A (en) 2013-04-23 2014-02-17 Hybrid thread for welding gun neck
CN202010112371.4A Pending CN111545879A (en) 2013-04-23 2014-02-17 Hybrid thread for welding gun neck

Family Applications Before (1)

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CN201480022567.7A Pending CN105142843A (en) 2013-04-23 2014-02-17 Hybrid thread for welding gun neck

Country Status (8)

Country Link
US (1) US20140312023A1 (en)
EP (1) EP2988901B1 (en)
CN (2) CN105142843A (en)
BR (1) BR112015026999A2 (en)
CA (1) CA2899420C (en)
ES (1) ES2632467T3 (en)
MX (1) MX2015009728A (en)
WO (1) WO2014175944A1 (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10583514B2 (en) * 2015-09-18 2020-03-10 Illinois Tool Works Inc. Contact tip rotary lock of a welding torch
US11103949B2 (en) * 2017-04-03 2021-08-31 Illinois Tool Works Inc. Quick connect configurations for welding necks and gas diffusers
DE202017007077U1 (en) * 2017-07-24 2019-06-24 Sks Welding Systems Gmbh Arc welding torch and its wear parts
US11268693B2 (en) 2018-02-06 2022-03-08 Illinois Tool Works Inc. Nozzle assemblies having multiple attachment methods
US11192202B2 (en) * 2018-02-06 2021-12-07 Illinois Tool Works Inc. Gas diffuser assemblies for nozzle assemblies having multiple attachment methods

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3731048A (en) * 1972-03-03 1973-05-01 Ogden Eng Corp Air cooled welding gun
US4158763A (en) * 1977-08-04 1979-06-19 Moerke Delford A Curved nozzle welding gun
US5221113A (en) * 1991-04-09 1993-06-22 Festo K.G. Male and female screw threads, more especially for pneumatic equipment
US20030096656A1 (en) * 2001-11-19 2003-05-22 Pechauer Jerrold Joseph Pool cue self-aligning joint assembly
US20050218132A1 (en) * 2004-03-31 2005-10-06 Wells Jeff G Method and apparatus for securing welding torch components
US20090242037A1 (en) * 2008-03-27 2009-10-01 Drescher William T Fuel delivery system for a torch
CN201696602U (en) * 2010-08-20 2011-01-05 力帆实业(集团)股份有限公司 Handle ball structure
CN202365900U (en) * 2011-11-30 2012-08-08 上海拓腾医疗器械有限公司 Internal fixation device of spine
CN202539777U (en) * 2012-04-06 2012-11-21 常州市华瑞焊割机械有限公司 Split welding gun for argon arc welding

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US3249734A (en) * 1963-11-20 1966-05-03 Machinery And Welder Corp Welding torch for continuous wire feed
US3529128A (en) * 1967-09-27 1970-09-15 Fmc Corp Welding torch
US3597576A (en) * 1969-07-15 1971-08-03 Dover Corp Spatter and heat shield for welding gun
US3728514A (en) * 1970-12-21 1973-04-17 Bernard Welding Equipment Co Thermionic insulated arc welding gun
GB1386183A (en) * 1972-10-05 1975-03-05 Elliott Brothers London Ltd Pulse signal handling circuit arrangements
US4033615A (en) * 1975-06-16 1977-07-05 Ross Operating Valve Company Port thread
US4572942A (en) * 1982-08-03 1986-02-25 Church John G Gas-metal-arc welding process
GB8617827D0 (en) * 1986-07-22 1986-08-28 British Steel Corp Joints for tubular members
US8540755B2 (en) * 2003-07-21 2013-09-24 Robin C. Whitmore Self-drilling self-tapping bone screw
US7530546B2 (en) * 2004-01-13 2009-05-12 Rymed Technologies, Inc. Swabbable needle-free injection port valve system with zero fluid displacement
US8604388B2 (en) * 2006-03-13 2013-12-10 Illinois Tool Works Inc. Contact tip assembly for a welding torch

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3731048A (en) * 1972-03-03 1973-05-01 Ogden Eng Corp Air cooled welding gun
US4158763A (en) * 1977-08-04 1979-06-19 Moerke Delford A Curved nozzle welding gun
US5221113A (en) * 1991-04-09 1993-06-22 Festo K.G. Male and female screw threads, more especially for pneumatic equipment
US20030096656A1 (en) * 2001-11-19 2003-05-22 Pechauer Jerrold Joseph Pool cue self-aligning joint assembly
US20050218132A1 (en) * 2004-03-31 2005-10-06 Wells Jeff G Method and apparatus for securing welding torch components
US20090242037A1 (en) * 2008-03-27 2009-10-01 Drescher William T Fuel delivery system for a torch
CN201696602U (en) * 2010-08-20 2011-01-05 力帆实业(集团)股份有限公司 Handle ball structure
CN202365900U (en) * 2011-11-30 2012-08-08 上海拓腾医疗器械有限公司 Internal fixation device of spine
CN202539777U (en) * 2012-04-06 2012-11-21 常州市华瑞焊割机械有限公司 Split welding gun for argon arc welding

Also Published As

Publication number Publication date
CN105142843A (en) 2015-12-09
CA2899420C (en) 2018-01-16
WO2014175944A1 (en) 2014-10-30
CA2899420A1 (en) 2014-10-30
EP2988901A1 (en) 2016-03-02
US20140312023A1 (en) 2014-10-23
BR112015026999A2 (en) 2017-07-25
EP2988901B1 (en) 2017-05-03
MX2015009728A (en) 2015-11-13
ES2632467T3 (en) 2017-09-13

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Application publication date: 20200818